Sectional steam  boiler



May 3, 1927. y 1,627,530 c. z. ALExANDER e-r AL sEc'TzonAL swan nonna Filed Oct. 5. 1921 2 ShNts-Shee'c I May 3. 1927. 1.627.530 c. z. ALEXANDER ET AL SEGTIONAL STEAM BOILER Filed Oct. 5, 1921v 2 Shoots-Sheet 2 Patented May 192i'.

UNITED STATES .PATENT OFFICE.

SIGNORS, BY MESNE ASSIGNMENTS, T EIJWN C, SYFAIRLD. OF JERSEY CITY, NEW

SECTIONAL STEAM .'BOLELR.

Application filed October li,

This invention relates especially to eeetional boilers 'For steam heating. etc.N of the general type covered hy the .fi-.lexander Patent No. 1.240.804. oil: September 25, l9l7 and 'iu which each regular or body section ot the hoiler at least comprises one or more geyscr tuljies 'lorincd or cast in connection therewith and exposed to the heat ot the tire and preieraloly having' bent or depending' water legs Awhich may more or lees enelosethe `lire hon :it the top to guide the hot through the Sections in the desired way. These ,o eyeer tubes` which preleii'alolj.T are ot sutliciently restricted area to ,Qive eood water circulation: or liftingr action. communicate with the water spaces or water jackets ot the fire hex portions in each section: 2' id wl'ren the hoiler is in operation sufficient stcaln is gen-- erated in these greyser tuheel aud connected vater legrs to autoinatically carry the water up to the steam chainbers or suinileinental heating surfaces in the upper part oli the hoilcr `ahove the normal water line. Two or more such steam chambers may, il: desired, he cast together or otherwise joined to 'lforin a. unitary Stean'i chan'iher portion ol" the boiler section and may he connected to the tire box portion hv the geyser tuhe or con neetion which n'iay allvantaieously he ar1 ranged ad'aeent the centre ot the Section7 and also. it deaired, hy suppleu'ientary l`Qjeyscn devices or water supply connections ot which one or more may he arranged at other parteI ot the section. The stean'i ehanihers )nay he formed with laterally sloping surtace and with traneverse rilrs.4 or projections to torni one or more tortuous or staggered water channels over which the water from the g'eyfrer tnhe devices normally tlowe in thin sheets or streams while Further evaporation ta lies place. The heile-r nia-y he lgmilt up of' any dee. 'ed nmnher ot these vertical or other sections which may he lour to eight inches wide more or less and connected toert-zt1 .oer hy the usual nipple eonneenione nsed in euoh work. At the ends oll these regular or hody setions lhe hoiler front and haelt n'iay he secured in any euitahlo `way and may in some cases he given a speeial 'water jacketod torni so as to `euide the hot flue gases as they move in zigzag paths over and between the eleain chanihers. In Sonie cases, howover. it ,more desirable to have special liront and rear eectione` formed with specially 5.921. Serial No. 353,574..

designed eteaiu chambers or portione which provide these sn'iolie circnratingf passages, although this is nott oi course, necessary in all cases.

In the aeconniianying drawing showing in a eoinmvhat diagrammatic way an illustrative enihodiinent oll this invention7 Fig. l ie a vertical section through the holler taken substantially along the line jl-l of Fie. 2.

Fig. E2 a partial horizont-al section taken alone' the lines 2 2 ot Fig. 3 to Show the d i erent steam chan'ibers.

Fig'. 3 is a longitudinal vertical sectional view taken as to the end section at the lett hand et Figure 3 upon line 3 3 of Fig. l, as to the next section toward the righthand upon line 5SH-8 of Figi. andV as to the reniainin;Y three sections at the right-han l side oli Fig. 3 n pon the line 3"-3 o'l' Fig. l9 the combining ot these different sections in a single figure enabling them to he directly compared and the construction better underetood.

Fie'. le ie a partial horizontal sectional view laken aloner the lino {le-fl of Fig. l.

The holler may he 'formed with any desired nuinher of replaceable connected sec tions and` oi course. more sections may he added to the heiler from time to time to increase its capacity. Each ol" the regular or body sections may have the Construction shown in Fie'. l and comprise an ash pit portion l over which a grate 2 ot any desired torni and construction may he arranged. Above the ejrate the `lire hokV portion is ar ranged and holted or otherwise secured thereto when the hoiler is asfannhled. the sides heine; preferably. though not neoessa rily. 'liornied ot cast iron or steel and compris 'ino' the outer wall lf l'iaving; a flaring water space or druin .l5 adjacent its lower end where. the Section. nipples lll are arangred to diseneaeeahly connect the adjacent sections. The inner wall ll. ol" this fire hrmv portion inay in some cases he carried or VFlared inward somewhat adiaeent the top to 'torni a somewhat enlarged Steam space l0 and this inner wall preferably has an openinev at about the point 13 so ae to eupply water lreely to the geyser tuhe devices whichv have dependingwater leg` channel@I .1&2 e tending down adjacent or formino` the central part ol the inner surface oll these lire ll l) sired. Preferably the lower steam chamber may be formed with an inner circular wall 39 of rather large diameter so as to `torni an annular smoke passano 29 around the geyser tube which contributes toward the heating ol this tube and promotes the water circulation therethrough.

The tire in the grate 2 heats the adjacent walls ot the lire box portions ot' the ditterent tnrnace sections and by radiation highly heats the water legs ot the geyser tube devices above. which is oit course olf crmsiderable in'iportance in starting,l the lire since these relatively small area water legs are in the direct path ot' the flames so as to be quickly heated when the lire is started and promptly supply water to the steam charnbers above. Under normal operatingl conditions the smoke and hot fases from the lire pass up toward the top ot the tire box and while they pass between the `water .legs to some extent they mainly move backivard as indicated by the dotted arrows in Fig. Si and then pass up around the back water legs 50 which may. as indicated, be given a special narrow form in the rear section ot tno furnace so as to leave an ample smoke passage behind these water legs nl) and allow the smoke and hot gases. to re ch the lower smoke tlue 9 above the water lees and below the lower steam chambers 8. The tnll line arrows show the direction oit movement ot these hot gases toward the trout ot the turnace where they may pass up in front ol: a special lower steam chamber t8 ot' narrow construction as indicated so that these rases can move up above the lower steam chambers and then pass backward as indicated by the arrows through the upper smoke l'iassages 48 and supply heat to the upper steam chambers T before the gases pass into the smoke box or ln'eechii'ial o8 communicating with the chin'iney. llt desired, special back boiler sections, such as al, ot water jacket construction may be used at the rear ot the special boiler sections described and comu-urteil. therewith by the bottom nipples l-l such connect the special steam chamber sections. Sin'iilarly a special ti'irnace front ft2 may be provided of generally similar water jacketconstruction, also connected to the other sections and having suit-able cleaningl and tiringr doors such as 38.

lhis invention has been described in connection with a number of illustrative enibodiments. ilorms, proi'iortions, parts, arranoements` materials, constructions and i methods olz manufacture and use, to the deprising a fire box portion ot water jacket construction having' depending water legs oli sul'istantially the same width as the width ot' the tire box portion and connecting the upper parts tlierco't. a steani chamber portion cri-operating with and connected to cach lire box portion and con'lprising` a yilural-iity ot communica-ting superimposed steam chambers each liaviirtgl elongated water channels a substantially vertical `ejeyser tube conmctingr each ot thc steam chamber portous with the water legs in the corresponding section and a lateral supi'ilemental water supply connection between said upper steam chamber and the upper part oli the said lire box portion tosupply additional water to the steam chambers under forced liring conditions. there being a series oll smoke i'iucs adjacentsaid lire box water legs and below each ot the steam chambers to supply heat thereto trom the hot furnace lhgases. and turnace `front and back members secured to said sections and termed with cleaning-r and tiring; doors and smoke box connections.

2. ,le boiler comprisingl a series el. conneced vertical sections each comprising a lire box portion ot Vwaterjacket construction ha vingdependine,v water legs connecting` the uppc` pai te ther-cot, a steam chamber portion co-oiicratin@` with and connected to each lire box portion and coininisinpa plurality o l comnninieating` superimposed steam chambers each having elongated water channels a substantially vertical `Qfeyser tube connecting` ea Ih oi the steau'i chan'lber portions with the water legs in the correspoiulingr section (l ere bciirey a series ot .sn/rohe .Fines adjacent said lire box water lees and below each ol the steam chanibers to supply heat thereto trom the hot 'furnace Kcases.

Z-. boiler comprisiup` a series ol" conncctcd vert-.ical sections each conii'n'ising a lire boxY portion otI water jacket construction having depending` water legs, a steam chamber portion co-opcratinn with and connected to each tire box portion and comprisingr evaporating;` surfaces above the normal water level in the sectioin a substantially vertical ireyscr tube connectinneach ot the stcai'n chamber portions with the water lens in. the corresponding section, there beine' smoke llues adjacent .id lire boi; water le;`

-l. A. boiler cunpr c a series ot' veri ical sections cach coi'npri. nii; a lire box portion ot water jacket construction having dcpenf'linn; water li-rggls` connect-ino; the sides tbereo'in a steam chamber portion ifo-operating with cach tire box portion and comprising a plurality ot communicatinir suiieriniposed steam chambius` a .i'eyi-fcr tube dcinchnliilr ceiincctiiur cach o'l the steam chan'rbcr portions witb the water lees in the correspondinesection and a supplemental water siuiplliv connection between said steam chamber portion and the upper part ot the said lire box lill) Il. l0

leach fire boi: portion. and' eoinprie portiontosupply additional water to` the steam chambers under forced tiring` conditionerthere beingw l1-series 'oit' .amelie flnee above aaidrtire box water legis and betonY each of the steam ehan'ibers to supply heat to Said steam ol'iamber portionr from tbe bot fornace gases, and Water jacket 'furnace front and back members secured to said sections and formed witlr cleaning. and liringdoors. n

V5ml boiler oomprising` a Series; ol' vertical .eectione4 each comin'isii'ig;- a tire box portion oit water jf-n'zlmt conetrnrt'tmi bari depending water ,lens conneetino'y the sides ther-coli, a steam Chamb i' portion oo-opersduino` with nr evaporatingj Snrtaoes abmre the nori'nal water level init-he Section, a geyser tnbe coi'mectinoj earh or' the Steam chamber port-ione' with the A vaterlegs in the eorresporflinev 'wot-tion. there being al series oi Smoke linea aborr said lire box *ater legs` and belmv each ot the steam chambers to supply heat to smid f-itcain chamber portions trom the bot 'fornace gases,

6. A boiler Comprisiim' a Series oli ronnected vertical seetione each conrpr'einpl alire boxfportion o'lZ water Vjacket conetrnrt-ion having? water leen extemliiroA adjacent the top ot' the lire box portion and ol Snlstantia-ll@7 the Same width as the width thereot, a steam Chamber portiony oo-opcratinn with and Connected to each fire box portion and compriamo tortnonel Water clrani'iellen a reyaer tnbe connecting: each ol" the Steam chamber portions with tbe water legis in the cor-V y respondio nected vertical Sections each compriSing` a fire box'portion having' water leiis extend.-l inn' adjacent the top ot the tire-box portion and oit fnibat'antially the Same width as the width thereot a Steam chamber portion rooperatiniz with and connected to each tire box portion and comprising e 'aporating sinr- V'laces above the normal Water level inthe Section, a genJ i tube Connefr/ting;- one ot the steam cl'iamber portions with the Water legs in the correeponrling Section; there boing a .aerien o'l aniole 'linee above said fire box Water legis and below Said steam ohaniber portions to supply heat thereto ,trom the hot t'inznaee pasea the rear boiler section having' narrow Water legs above the lire box to allow the smoke gases to passbehindf the same and they front section having av narrowed steam chamberportion to permit the passage oE emolte aser-t in 'i'ront thereof and water jacket tornare liront and back members Seonred to oaid Sections.

8. boiler comprisingv a series; of Connected vertical sections eaolroomprsinga Vire box portion having-r Water vlegs extending); adjacent the top of the lire boX portion. :1n-:l oit aub-"tantialllwv the same Width asithe .rirlth there( i, a Steam chamber portion oooi ,ratii'ro` with and conneoted to each fire box portion and comprising;` evaporating. :einaoen above the normal Water level in lle `Section. a reyeer tube connectingr one of the lteam chamber portions with the Water logre in the coi-reepondinol Section.y there beo' .sinolto lines; above eaid :lire box Water oja and below 'said steam chamber portions i le to snpply. heat thereto' from the hot fornace lager-3 the rear boil r section hrw-ing a` vertical z-imolie pas-sane above the lire box to allon' the ianolte ;jaeesto pass behind the same and tbc Yl'ront .faeotion having'` a \fertieal en'iolfe pasean@ to permit theY passage oit' .enrol-.fe grasos in. trent thereof vand furnace t'ront andy boel; membernseouredf tosaid seoabe vertical sections eaoh comprieingl atire bor; portion of water jacket construction having adjacent eaeh Leide oiithe lire vboXl a relativer)7 narrow water legv channel `communicating with the water Space at the lower part of this tire box portiom bent depemling,r

Water legs connecting the np per parteA ot said lire bon portion and oomnnlnieating`v` Vwith Said water legrchannelm a ssteanr chamber portion eo-operatingr with and connected `to each tire box portion andv eonn'nisinn` a pluralltyy of comn'lnnicating? steam chambers each having' tortnone water channels? a substantially 'vertical ireyser tnbe detaohably ooimectino` eaoh of thenpper steam Chambers rritlrtlle water lege in the'Corresponding seotion. there beinel a series ot smoke fines above said? tire box water legis and below oaohot the nteam clnimbereto supply heat thereto 'from the hot furnace gases.

l() A boiler comprisingv a aerien ot' detaebable vertical sections eaclr comprising a. tire box portion oi water jaelietfconstruetion hannro` yadjarent each aide oit the lire box a relatively narrow water leg channel communicating' with the vater f-:paee at the lower part o't this lire box portion. bent de,-

)endinoj Water leon connecting' the 1133er parte of Said tire box portion and communiratinlog, with said water lele` ehannele, a steam chamber portion oo-oporatinf with and connected to each vtire box 'portion and oomprissino' tortnons vater channels, a feyeer tube Connecting each o'l the upper Steam chambere with the water legs in the correl 

